SOCY 211 Lecture 2: W2 Populations, samples and units

• School: Queen's University
• Department: Social Sci, Edu and Soc Work - Sociology
• Course: SOCY 211
• Professor: William Nelson

Document Summary

Module 1 key ideas: sampling unit: a single element that could be sampled, statistical population: the group of all sampling units of interest, sample: a random subset of the statistical population, observation unit: a random subset of the statistical population, measurement variable: the data collected. ex. height, measurement unit: scale for the data. ex. cm. Example: sampling unit: house, statistical population: all house (ones that we are interested in, sample: randomly selected houses, observation unit: a person in the house, measurement variable: height, measurement unit: cm. Case study is a mediterranean diet better: 605 heart attack survivors in a coronary care unit, randomly assigned to the mediterranean or american health association diet, visits by a dietician at 2 months, then once a year, sampling unit: a person, statistical population: all people in clinic, sample: 302 md, 303 aha, observation unit: a person, measurement variable: disease state after 4 years, measurement unit: categorical (none)